Head of a golf club with high coefficient of restitution

ABSTRACT

A head of a golf club is provided with a high coefficient of restitution. The head has a club head, a shaft, and a buffer element. The club head has a face panel and an installing seat. The face panel is mounted on one side of the club head. The installing seat is formed on another side of the club head and has a through hole. The shaft is an elongated body, is mounted in the club head, and has a cavity and a mounting portion on two ends of the shaft. The mounting portion is securely mounted on the installing seat. The buffer element is a compressible and resilient body, and abuts the face panel. When hitting a golf, the face panel deforms concavely, and the impulse force is conserved by the buffer element so that the face panel may not split or break.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based upon and claims priority under 35 U.S.C. 119from Taiwan Patent Application No. 106128252 filed on Aug. 21, 2017,which is hereby specifically incorporated herein by this referencethereto.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a head of a golf club, especially to ahead of a golf club with a high coefficient of restitution.

2. Description of the Prior Arts

A conventional golf club comprises a club and a head mounted on one endof the club. The head has a face panel mounted on one side of the head.The face panel has a specific thickness. A handle is formed on anotherend of the club. When a player grips the handle with hands and hits thegolf, the golf club is swung and hits the golf at 45 meters per second,and the face panel with a coefficient of restitution approximately from0.825 to 0.83 impacts the golf. At that time, the impact force makes theface panel slightly deform concavely by 0.2 to 0.25 millimeters at astriking point, and the golf also deforms by a reaction force andfurther, the golf pops out because of the reaction force.

According to experience and skill level, a golf player may be sorted asa professional golf player or an amateur. Besides, there are varioustypes of golf clubs, one of which comprises a wood club with a hollowhead, and this wood club is utilized to strike out for longer distances.A professional player can accurately adjust the hitting force andcontrol movement in hitting the golf, so the professional player is ableto strike out the golf to a longer desired distance. In contrast, anamateur cannot control movement and strike force as accurately as theprofessional player, so even using the same golf club and the same facepanel, the amateur still cannot strike out the golf to the longerdesired distance. In other words, the amateur using a conventional golfclub may not reach a desired striking effect.

To overcome the shortcomings, the present invention provides a head of agolf club to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a head of agolf club, the head having a face panel with a high coefficient ofrestitution. With the face panel with a high coefficient of restitution,an amateur can easily strike out the golf for a long distance.

The head has a club head, a shaft, and a buffer element. The club headis a hollow body and has a face panel and an installing seat. The facepanel is mounted on one side of the club head. The face panel is made ofa board and has an inner surface and an outer surface. The installingseat is formed on another side of the club head and has a through holecommunicating with an interior of the club head. The shaft is anelongated body, is mounted in the club head, and has a cavity and amounting portion. The cavity is formed at one end of the shaft. Themounting portion is formed on another end of the shaft and securelymounted on the installing seat of the club head. The buffer element is acompressible and resilient body and has two ends. One of the ends of thebuffer element is mounted in the cavity of the shaft, and an end surfaceof the other end of the buffer element abuts the inner surface of theface panel. An axis of a combination of the shaft and the buffer elementis perpendicular to the inner surface of the face panel.

Therefore, as the shaft is mounted in the club head and the bufferelement is mounted on the shaft and abuts the inner surface of the facepanel, when the golf is hit by a golf club with aforesaid head, theouter surface of the face panel is impacted and deforms concavely andthe golf is popped out immediately. Meanwhile, the compressible andresilient buffer element may conserve the impulse and prevent the facepanel from splitting or breaking. Therefore, a thickness of the facepanel may be lower than that of a conventional face panel and therebyincreasing coefficient of restitution to pop out the golf for longerdistance.

With the aforesaid structures, i.e. the shaft is mounted inside the clubhead, the buffer element is mounted on the shaft and adjacent to theface panel, and the buffer element abuts the inner surface of the facepanel, when the golf is being hit, the outer surface of the face panelmay deform concavely by the impulse and the golf may also deform at thesame time so that the golf is struck out. Being a compressible andresilient body, the buffer element may conserve the impulse and preventthe face panel from being broken by the impulse. Therefore, a thickerface panel than a conventional face panel may be mounted on the head,and the head with a high coefficient of restitution may assist the golfto be struck out to a longer distance.

Other objectives, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a head of a golf club in accordance witha first embodiment of the present invention;

FIG. 2 is an exploded perspective view of the head in accordance withthe first embodiment of the present invention;

FIG. 3 is a sectional view of the head in FIG. 2;

FIG. 4 is a perspective view of the head in FIG. 2 when hitting a golf;

FIG. 5 is an exploded perspective view of the head in accordance with asecond embodiment of the present invention;

FIG. 6 is a sectional view of the head in FIG. 5;

FIG. 7 is a sectional view of the head in accordance with the secondembodiment of the present invention; and

FIG. 8 is a sectional view of the head in accordance with the secondembodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIGS. 1, 2, and 3, a head of a golf club in accordancewith the present invention has a high coefficient of restitution. In afirst embodiment, the head comprises a club head 10, a shaft 20, and abuffer element 30.

The club head 10 is a hollow body. The club head 10 has a face panel 11mounted on one side of the club head 10. The face panel 11 is made of aboard and has an inner surface 111 and an outer surface 112. The outersurface of the face panel 11 is configured to hit the golf. A thicknessof the board is lower than that of the conventional, which makes theface panel 11 have a high coefficient of restitution. The club head 10has an installing seat 12 formed on another side of the club head 10.The installing seat 12 comprises a through hole communicating with aninterior of the club head 10.

The shaft 20 is an elongated body. The shaft 20 comprises a cavity 21 atone end of the elongated body and a mounting portion 22 at another endof the elongated body.

The buffer element 30 is a compressible, resilient, and elongated body.The buffer element 30 has two ends, one of the ends is mounted in andcombined with the cavity 21 of the shaft 20, and thus axes of thecombined shaft 20 and buffer element 30 are perpendicular to the innersurface 111 of the face panel 11. The other end of the buffer element 30protrudes out of the shaft 20 and an end surface of the other end of thebuffer element 30 abuts the inner surface 111 of the face panel 11. Theshaft 20 is mounted into the club head 10 through the through hole ofthe installing seat 12. The mounting portion 22 is mounted on andcombined with the installing seat 12 of the club head 10.

Then please refer to FIGS. 1 to 3. In this embodiment, the shaft 20 is ahollow tube. Therefore, the cavity 21 is formed at one end of the tube.An outer wall of the mounting portion 22 has outer threads 221 and thethrough hole of the installing seat 12 has inner threads, so that theouter threads 221 of the mounting portion 22 and the inner thread of theinstalling seat 12 are securely threaded together. One end of theelongated body (i.e. the shaft 20) forms a positioning sleeve 223, andthe positioning sleeve 223 is utilized to abut an exterior of theinstalling seat 12; the end of the elongated body is said another endcomprising the mounting portion 22.

Then please also refer to FIG. 4. When a user swings the golf club andhits a golf, the face panel 11 of the club head 10 strikes the golf 40.Meanwhile, the outer surface 112 of the face panel 11 is impacted anddeformed slightly and concavely. Because the inner surface 111 of theface panel 11 is abutted and supported by the resilient buffer element30, the face panel 11 may not over deform to split or break but iscapable of reverting to the original shape after hitting the golf.

The first embodiment of the present invention further comprises a cap50. The cap 50 has outer threads 51 and the shaft 20 as the hollow tubehas inner threads 222, so that the inner thread 222 of the shaft 20 andthe outer thread 51 of the cap 50 are securely threaded together andthereby the shaft 20 is fixed.

Then please refer to FIG. 5 and FIG. 6. The second embodiment of thepresent invention is provided. In the second embodiment, the club head10 is identical to the club head 10 in the first embodiment. One of thedifferences between the first embodiment and the second embodiment isthat the shaft 20A in the second embodiment is a hollow tube. The shaft20A comprises an opening 21A at one end of the shaft 20A and a mountingportion 22A at another end of the shaft 20A. A structure of the mountingportion 22A is identical to that of the mounting portion 22 in the firstembodiment. The head according to the second embodiment of the presentinvention further comprises a receiving seat 60. The receiving seat 60is a hollow body, one end of the receiving seat 60 is a closed end andanother end of the receiving seat 60 is an open end. Therefore, the openend of the receiving seat 60 is concaved and forms a cavity 61. Thereceiving seat 60 has a positioning sleeve 62 formed on an outer surfaceof the receiving seat 60 and close to the open end. The receiving seat60 is utilized to be mounted into the opening 21A of the shaft 20A andcombined with the shaft 20A. One end of the buffer element 30 is mountedin the cavity 61 of the receiving seat 60 and another end of the bufferelement 30 protrudes out of the shaft 20A and the receiving seat 60.

Then please refer to FIG. 7. The third embodiment of the presentinvention is provided. In the second embodiment, the club head 10 isidentical to the club head 10 in the first embodiment. One of thedifferences between the first embodiment and the third embodiment isthat the shaft 20B in the third embodiment is a hollow tube. The bufferelement 30 is mounted at one end of the shaft 20B, and said end of theshaft 20B may be identical to that of the first embodiment or the secondembodiment in structure. The shaft 20B comprises an assembling portion201B formed at another end of the shaft 20B. The head according to thethird embodiment of the present invention further comprises a mountingseat 22B. The mounting seat 22B is mounted on and combined with theassembling portion 201B. The shaft 20B is mounted into the club head 10and the mounting seat 22B is mounted on and combined with the installingseat 12 of the club head 10. The assembling portion 201B has outerthreads, and the mounting seat 22B is a hollow body and has innerthreads and outer threads, so that the inner threads at one end of themounting seat 22B and the outer threads of the assembling portion 201Bare threaded together. The inner threads at another end of the mountingseat 22B are configured to be threaded with a cap 50B.

Then please refer to FIG. 8. The fourth embodiment of the presentinvention is provided. In the fourth embodiment, the club head 10 isidentical to the club head 10 in the first embodiment. One of thedifferences between the first embodiment and the fourth embodiment isthat the shaft 20C is a solid body. The shaft 20C comprises a cavity 21Cformed at one end of the shaft 20C and a mounting portion 22C at anotherend of the shaft 20C. The cavity 21C is configured to be mounted withthe buffer element 30. The shaft 20C is mounted into the club head 10,and thus the mounting seat 22C is mounted on and combined with theinstalling seat 12 of the club head 10.

Even though numerous characteristics and advantages of the presentinvention have been set fourth in the foregoing description, togetherwith details of the structure and features of the invention, thedisclosure is illustrative only. Changes may be made in the details,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

What is claimed is:
 1. A head of a golf club, the head comprising: aclub head being a hollow body and comprising: a face panel mounted onone side of the club head, the face panel having an inner surface and anouter surface; and an installing seat formed on another side of the clubhead and comprising: a through hole communicating with an interior ofthe club head; a shaft being an elongated body, mounted in the clubhead, and comprising: a cavity formed at one end of the shaft; and amounting portion formed on another end of the shaft and securely mountedon the installing seat of the club head; a buffer element being acompressible and resilient body and having two ends; one of the ends ofthe buffer element mounted in the cavity of the shaft, an end surface ofthe other end of the buffer element abutting the inner surface of theface panel; an axis of the shaft and an axis of the buffer element beingperpendicular to the inner surface of the face panel.
 2. The head of agolf club as claimed in claim 1, wherein a coefficient of restitution ofthe face panel ranges from 0.88 to 0.89.
 3. The head of a golf club asclaimed in claim 1, wherein: the shaft is a hollow tube; the mountingportion forms: outer threads on an outer wall of the mounting portion;and a positioning sleeve on an end of the mounting portion and abuttingthe installing seat; and the installing seat has inner threads in thethrough hole of the installing seat; wherein the mounting portion andthe installing seat are threaded to each other via the inner threads ofthe installing seat and the outer threads of the mounting portion. 4.The head of a golf club as claimed in claim 1, wherein the shaft is ahollow tube and further comprises: a receiving seat being a hollow bodyand mounted into one end of the shaft; the receiving seat having aclosed end and an open end, and comprising: a positioning sleeveprotruding out of an outer annular surface of the open end; wherein thecavity of the shaft is formed inward at the open end of the receivingseat, and the buffer element is mounted in the cavity.
 5. The head of agolf club as claimed in claim 1, wherein the shaft is a hollow tube andcomprises: an assembling portion formed on said another end of theshaft, said another end being the end opposite said end of the shaftmounted with the buffer element; and a mounting seat securely mounted onthe assembling portion and the installing seat of the club head.
 6. Thehead of a golf club as claimed in claim 5 wherein: the assemblingportion of the shaft has outer threads; the mounting seat is a hollowbody and has inner threads; the inner threads of the mounting seat arethreaded with the outer threads of the assembling portion.
 7. The headof a golf club as claimed in claim 5 wherein: the installing seat hasinner threads in the through hole of the installing seat; and themounting seat has outer threads; the outer threads of the mounting seatare threaded with the inner threads of the installing seat.
 8. The headof a golf club as claimed in claim 1 further comprising: a cap havingouter threads; wherein the shaft has inner threads and thereby the outerthreads of the cap are threaded with the inner threads of the shaft. 9.The head of a golf club as claimed in claim 6 further comprising: a caphaving outer threads; wherein the outer threads of the cap are threadedwith the inner threads of the mounting seat.
 10. The head of a golf clubas claimed in claim 1, wherein the shaft is a solid body.